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J. Baird Callicott on Wild Life

Animal Ethics

Concern for animal (and plant) rights and well-being is as fundamental to the land ethic as to the humane ethic, but the difference between naturally evolved and humanly bred species is an essential consideration for the one, though not for the other. (

Ethics 40
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Moral Vegetarianism, Part 3 of 13

Animal Ethics

KBJ: Humans and pigs are not just sentient, which already distinguishes them from microorganisms; they are, in Tom Regan’s terminology, “subjects of a life.” One might first ask, “Why does higher intelligence mean that one species is more valuable than other species?” But the question remains.

Morals 40